| Word Scramble - Countries | 0 | - | 4.88 | 2,126,754 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,491 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,665 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,817 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,074 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,607 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,811 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,708 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,927,949 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,860 |
| Countries with Four Letters | 0 | - | 4.99 | 426,138 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,217 |
| Landlocked Countries | 0 | - | 4.99 | 426,687 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,191 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,557 |
| Country Chain | 0 | - | 4.96 | 218,567 |
| Countries by Emojis | 0 | - | 4.99 | 242,662 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,657 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,059 |
| Islands by Country #1 | 0 | - | 4.90 | 176,437 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,302 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,617 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,435 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,584 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,919 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,390 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,812 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,311 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,210 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,724 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,411 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,397 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,241 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,469 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 744,163 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,632 |
| Himalayan Countries | 0 | - | 4.93 | 140,561 |
| Andean Countries | 0 | - | 4.94 | 85,662 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,796 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,279 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,350 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,580 |
| Danube Countries | 0 | - | 4.97 | 72,489 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,710 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,913 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,310 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,758 |
| European Landlocked Countries | 0 | - | 4.99 | 147,683 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,426 |
| Countries with the Most Species | 0 | - | 4.99 | 103,610 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,543 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,794 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,923 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,887 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,630 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,083 |
| Countries in the Alps | 0 | - | 4.87 | 118,878 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,831 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,021 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,021 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,109 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,054 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,338 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,482 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,932 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,478 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,255 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,926 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,797 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,623 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,861 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,962 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,030 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,669 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,803 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,003 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,568 |
| Largest Countries By Category | 0 | - | 4.97 | 158,973 |
| Countries by Countries | 0 | - | 4.97 | 63,727 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,351 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,170 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,082 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,890 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,047 |
| Island Countries | 0 | - | 4.99 | 712,791 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,506 |
| Northernmost Countries | 0 | - | 4.99 | 364,335 |
| Countries of South America | 0 | - | 5.00 | 933,531 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,538 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,252 |
| "Land" Countries | 0 | - | 4.98 | 338,636 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,830 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,779 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,720 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,146 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,987 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,513 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,388 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,265 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,879 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,221 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,590 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,811 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,640 |
| Random Countries by Borders | 0 | - | 4.99 | 83,155 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,781 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,356 |
| Countries with Megacities | 0 | - | 4.99 | 267,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,009 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,248 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,343 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,350 |
| Countries by Official Language | 0 | - | 4.95 | 196,132 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,801 |
| Countries in their Native Language | 0 | - | 4.99 | 199,851 |
| Independence from Whom | 0 | - | 4.99 | 213,253 |
| Subdivisions by Country | 0 | - | 4.87 | 50,643 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,573 |
| Megadiverse Countries | 0 | - | 4.96 | 146,291 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,050 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,559 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,760 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,368 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,895 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,198 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,599 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,130 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,664 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,443 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,472 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,184 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,610 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,924 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,560 |
| World Map Quiz | 0 | - | 4.81 | 65,852 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,190 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,591 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,767 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,399 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,166 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,633 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,755 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,494 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,615 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,800 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,737 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,865 |
| Widest Countries East to West | 0 | - | 4.92 | 130,783 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,619 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,321 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,540 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,110 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,053 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,551 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,519 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,910 |
| Countries with Double Letters | 0 | - | 4.96 | 97,313 |
| Countries that End in N | 0 | - | 4.95 | 172,394 |
| Countries with Five Letters | 0 | - | 4.96 | 284,300 |
| Countries with Six Letters | 0 | - | 4.94 | 214,698 |
| Countries with W | 0 | - | 4.96 | 161,114 |
| Countries with Z | 0 | - | 4.98 | 292,696 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,458 |
| Countries That End in U | 0 | - | 4.95 | 121,283 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,251 |
| Countries that End in O | 0 | - | 4.92 | 160,290 |
| Countries that End in R | 0 | - | 4.87 | 119,233 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,997 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,000 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 176,966 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,956 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,112 |
| Countries That End in Y | 0 | - | 4.91 | 186,125 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,760 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,343 |
| Countries that End in I | 0 | - | 4.94 | 135,370 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,864 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,103 |
| Countries That End in NIA | 0 | - | 4.92 | 110,110 |
| Countries That End in BIA | 0 | - | 4.93 | 149,664 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,845 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,832 |
| Countries That End in RIA | 0 | - | 4.93 | 127,103 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,466 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,781 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,279 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,743 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,295 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,857 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,383 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,565 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,980 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,683 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,819 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,514 |
